linux-kernel - [PATCH 1/2] kunit: tool: make unit test not print parsed testdata to stdout

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Date:   Fri, 28 Oct 2022 14:02:55 -0700
From:   Daniel Latypov <dlatypov@...gle.com>
To:     brendanhiggins@...gle.com, davidgow@...gle.com
Cc:     rmoar@...gle.com, linux-kernel@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-kselftest@...r.kernel.org,
        skhan@...uxfoundation.org, Daniel Latypov <dlatypov@...gle.com>
Subject: [PATCH 1/2] kunit: tool: make unit test not print parsed testdata to stdout

Currently, if you run
$ ./tools/testing/kunit/kunit_tool_test.py
you'll see a lot of output from the parser as we feed it testdata.

This makes the output hard to read and fairly confusing, esp. since our
testdata includes example failures, which get printed out in red.

Silence that output so real failures are easier to see.

Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
---
 tools/testing/kunit/kunit_tool_test.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py
index e2cd2cc2e98f..a6e53945656e 100755
--- a/tools/testing/kunit/kunit_tool_test.py
+++ b/tools/testing/kunit/kunit_tool_test.py
@@ -80,6 +80,9 @@ class KconfigTest(unittest.TestCase):
 		self.assertEqual(actual_kconfig, expected_kconfig)
 
 class KUnitParserTest(unittest.TestCase):
+	def setUp(self):
+		self.print_mock = mock.patch('kunit_printer.Printer.print').start()
+		self.addCleanup(mock.patch.stopall)
 
 	def assertContains(self, needle: str, haystack: kunit_parser.LineStream):
 		# Clone the iterator so we can print the contents on failure.
@@ -485,6 +488,9 @@ class LinuxSourceTreeTest(unittest.TestCase):
 
 
 class KUnitJsonTest(unittest.TestCase):
+	def setUp(self):
+		self.print_mock = mock.patch('kunit_printer.Printer.print').start()
+		self.addCleanup(mock.patch.stopall)
 
 	def _json_for(self, log_file):
 		with open(test_data_path(log_file)) as file:

base-commit: 8f8b51f7d5c8bd3a89e7ea87aed2cdaa52ca5ba4
-- 
2.38.1.273.g43a17bfeac-goog